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Published on: October 23, 2012
A new bioabsorbable polymer film to prevent peritoneal adhesions validated in a post-surgical animal model
Lucie Allègre1,2, Isabelle Le Teuff1,2, Salomé Leprince2
1Department of gynecology and obstetrics, University Hospital of Nîmes, Nîmes, France.
Background:
Peritoneal adhesions are a serious surgical postoperative complication. The aim of this study is to investigate, in a rat model, the anti-adhesive effects of a bioabsorbable film of polymer combining polyethylene glycol and polylactic acid.
Materials And Methods:
Sixty-three animals were randomized into five groups according to the anti-adhesion treatment: Hyalobarrier®, Seprafilm®, Polymer A (PA), Polymer B (PB), and control. The rats were euthanized on days 5 and 12 to evaluate the extent, severity and degree of adhesions and histopathological changes. Three animals were euthanized at day 2 in PA, PB and control groups to observe the in vivo elimination.
Results:
Macroscopic adhesion formation was significantly lower in the PA group than in the control group at day 5 (median adhesion score 0±0 vs 9.6 ±0.5 p = 0.002) and at day 12 (0±0 vs 7.3±4 p = 0.02). Furthermore, median adhesion score at day 5 was significantly lower in the PA group than in the Seprafilm group (0±0 vs 4.2± 3.9 p = 0.03). Residence time of PA seems longer than PB.
Conclusion:
The PA bioabsorbable film seems efficient in preventing the formation of peritoneal adhesions.
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